<template>
	<view>
		<view class="my-settle-container">
			<!-- 全选区域 -->
			<label class="radio" @click="changeAllState">
				<radio color="#c00000" :checked="isFullCheck"/>全选<text></text>
			</label>
			<!-- 合计区域 -->
			<view class="amount-box">
			合计：<text class="amount">￥{{checkedGoodsAmount}}</text>
				
			</view>
			<!-- 结算按钮 -->
			<view class="btn-settle" @click="settlement">结算({{checkedCount}})</view>
		</view>
	</view>
</template>

<script>
	import {mapGetters, mapMutations,mapState } from 'vuex'
	export default {
		name:"my-settle",
		computed:{
			...mapGetters ('m_cart',['checkedCount','total','checkedGoodsAmount']),
			...mapGetters('m_user',['addstr']),
			...mapState('m_user',['token']),
			...mapState('m_cart',['cart']),
			isFullCheck(){
				return this.total === this.checkedCount
			}
		},
		data() {
			return {
				//倒计时的秒数
				seconds:3,
				//定时器id
				timer:null
			};
		},
		methods:{
			...mapMutations('m_cart',['updateAllGoodsState']),
			...mapMutations('m_user', ['updateRedirectInfo']),
			//点击结算按钮
			settlement(){
				//先判断是否勾选了要结算的商品
				if(!this.checkedCount) return uni.$showMsg('请选择要结算的商品！')
				//再判断是否选择了收货地址
				if(!this.addstr) return uni.$showMsg('请选择收货地址！')
				//最后判断用户是否登录
				if(!this.token) return this.delayNavigate()
				
				// 实现微信支付功能
				this.payOrder()
			},
			changeAllState(){
				this.updateAllGoodsState(!this.isFullCheck)
			},
			//展示倒计时的提示消息
			showTips(n){
				uni.showToast({
					icon:'none',
					title:'请先登录后再结算,'+n+'秒后自动跳转到登录页',
					//为页面添加透明遮罩,防止点击穿透
					mask:true,
					//1.5s后消失
					duration:1500
				})
			},
			delayNavigate(){
				//把data中的秒数重置成3秒
				this.seconds = 3
				this.showTips(this.seconds)
				//创建定时器,每隔一秒执行一次
				this.timer = setInterval(()=>{
					//先让秒数自减一
					this.seconds--
					if(this.seconds<=0){
						//如果倒计时小于等于0,跳转到my页面
						clearInterval(this.timer)
						uni.switchTab({
							url:'/pages/my/my',
							success: () => {
								//把跳转信息存储到vuex中
								this.updateRedirectInfo({
									//跳转的方式
									openType:'switchTab',
									from:'/pages/cart/cart'
								})
							}
						})
						//终止后续代码的运行
						return
					}
					//再根据最新的秒数,消息进行提示
					this.showTips(this.seconds)
				},1000)
			},
			//微信支付
			async payOrder(){
				//组织订单的信息对象
				const orderInfo = {
					//注释掉真是的订单价格，写死订单总价为1分钱
					// order_price:this.checkedGoodsAmount
					order_price:0.01,
					consignee_addr:this.addstr,
					goods: this.cart.filter(x=>x.goods_state).map(x=>({ goods_id: x.goods_id, goods_number: x.goods_count, goods_price: x.goods_price }))
				}
				//发起请求创建订单
				const {data:res} = await uni.$http.post('/api/public/v1/my/orders/create', orderInfo)
				if(res.meta.status !== 200) return uni.$showMsg('创建订单失败！')
				//得到服务器响应的订单编号
				const orderNumber = res.message.order_number
				// 订单预支付
				const {data:res2} = await uni.$http.post('/api/public/v1/my/orders/req_unifiedorder',{order_number: orderNumber})
				if(res2.meta.status !== 200) return uni.$showMsg('预付订单生成失败！')
				const payInfo = res2.message.pay
				
				// 发起微信支付
				const [err,succ] = await uni.requestPayment(payInfo)
				if(err) return uni.$showMsg('订单未支付!')
				
				//完成了支付,进一步查询支付的结果
				const {data:res3} = await uni.$http.post('/api/public/v1/my/orders/chkOrder', { order_number: orderNumber })
				if(res3.meta.status !== 200) return uni.$showMsg('订单未支付!')
				uni.showToast({
					title:'支付完成!',
					icon:'success'
				})
			}	
				
		}
	}
</script>

<style lang="scss">
.my-settle-container{
	position: fixed;
	bottom: 0;
	left: 0%;
	width: 100%;
	height: 50px;
	background-color: white;
	display: flex;
	justify-content: space-between;
	align-items: center;
	padding-left: 5px;
	font-size: 14px;
	.radio{
		display: flex;
		align-items: center;
	}
	.amount{
		color: #c00000;
	}
	.btn-settle{
		height: 50px;
		min-width: 100px;
		background-color: #c00000;
		color: white;
		line-height: 50px;
		text-align: center;
		padding: 0 10px;
	}
}
</style>